Tissue fastening instrument



FIG. 1 is a perspective view of a tissue fastening instrument according to an embodiment of the invention;

FIG. 2 is a side view of a tissue fastening instrument according to an embodiment of the invention;

FIG. 3 is a top view of a tissue fastening instrument according to an embodiment of the invention;

FIG. 4 is a bottom view of a tissue fastening instrument according to an embodiment of the invention;

FIG. 5 is a front view of a tissue fastening instrument according to an embodiment of the invention; and,

FIG. 6 is a rear view of a tissue fastening instrument according to an embodiment of the invention. 

We claim the ornamental design for tissue fastening instrument, as shown. 